Welcome to HVAC-Talk.com, a non-DIY site and the ultimate Source for HVAC Information & Knowledge Sharing for the industry professional! Here you can join over 150,000 HVAC Professionals & enthusiasts from around the world discussing all things related to HVAC/R. You are currently viewing as a NON-REGISTERED guest which gives you limited access to view discussions

To gain full access to our forums you must register; for a free account. As a registered Guest you will be able to:

Participate in over 40 different forums and search/browse from nearly 3 million posts.

I agree! Nice piping job. Too bad the electricians aren't up to snuff though. Shouldn't that be EMT(my bag, rigid, you're right piper) with weather-tight fittings instead of weather-tight flex, and with the same supports, (unistrut), like you have? Time to sub-out different electricians I'd say! With your quality, I bet you have sight-glasses right before the TEV's too.

JW Harris he is the man. James is right it is Staybrite. There was a good reason for using this low temperature silver. Since this was a replacement system the existing lines had oil in them.

So even thought we tried to wipe out the oil the best we could I didn't want to take the chance of igniting the oil. This would have created more contaimination than it was worth.

I would always use Silfos for discharge lines. But Staybrite is perfectly acceptable for refrigeration lines. Read the specifications for it. It should not be confused with 50/50 or 95/5. When I was a kid we put in whole supermarkets using this stuff.